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Fluid state analysis on flow field of gas sealwith spiral groove based on CFD |
Ding Xuexing1,2, Fu Yingjie1, Zhang Jing1, Zhang Weizheng1,2, Yu Shurong1,2 |
(1. College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou, Gansu 730050, China; 2.Wenzhou Research Institute of Pump and Valve Engineering,Lanzhou University of Technology, Wenzhou, Zhejiang 325105, China) |
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Abstract The three dimensional model of spiral groove gas seal is carried out and meshed by Gambit software.On certain occasions, there are two flow patterns named laminar and turbulence in the three dimensional micro groove. The two kind of flow patterns are simulated with Fluent software. As a result, their pressure distribution, velocity distribution and leakage were obtained. With the simulation results, theoretical calculations proceeds according to the velocity of flow factor.The results show that fluid state in spiral groove gas face seal is based on laminar on certain operating conditions. The simulation leakage and the experimental data are compared and analyzed. The laminar leakage data of 6.92×10 -6 m3/s is very similar to the experimental one of 6.94×10 -6 m3/s. In conclusion, fluid state in spiral groove gas face seal is based on laminar in certain operating conditions.
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Received: 13 November 2009
Published: 30 July 2010
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